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Finding the Fourth Proportional to 357,134.06, 535,683.78 and 132,538.28

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Solution

The fourth proportional to 357,134.06, 535,683.78 and 132,538.28 is: 198,801.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,134.06 : 535,683.78 = 132,538.28 : x
  2. Step 2: Convert to fraction form
    357,134.06/535,683.78 = 132,538.28/x
  3. Step 3: Cross multiply
    357,134.06x = 535,683.78 × 132,538.28
  4. Step 4: Simplify right side
    357,134.06x = 70,998,606,825.10
  5. Step 5: Solve for x
    x = 70,998,606,825.10/357,134.06
  6. Step 6: Final answer
    x = 198,801.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.